Hajime Aga

1.1k total citations
42 papers, 859 citations indexed

About

Hajime Aga is a scholar working on Biotechnology, Nutrition and Dietetics and Plant Science. According to data from OpenAlex, Hajime Aga has authored 42 papers receiving a total of 859 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Biotechnology, 22 papers in Nutrition and Dietetics and 17 papers in Plant Science. Recurrent topics in Hajime Aga's work include Enzyme Production and Characterization (30 papers), Microbial Metabolites in Food Biotechnology (17 papers) and Phytase and its Applications (12 papers). Hajime Aga is often cited by papers focused on Enzyme Production and Characterization (30 papers), Microbial Metabolites in Food Biotechnology (17 papers) and Phytase and its Applications (12 papers). Hajime Aga collaborates with scholars based in Japan, Netherlands and India. Hajime Aga's co-authors include Masashi Kurimoto, Shigeharu Fukuda, Shūzō Sakai, Masaru Yoneyama, Takashi Shibuya, Toshiyuki Sugimoto, Shûhei Nakajima, Michio Kubota, Yoshio Tsujisaka and Tomoyuki Nishimoto and has published in prestigious journals such as European Journal of Pharmacology, Carbohydrate Research and Bioscience Biotechnology and Biochemistry.

In The Last Decade

Hajime Aga

40 papers receiving 820 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Hajime Aga Japan 14 339 330 204 191 173 42 859
Wataru Saburi Japan 23 668 2.0× 453 1.4× 676 3.3× 125 0.7× 439 2.5× 88 1.6k
Robert M. Mayer United States 19 318 0.9× 260 0.8× 306 1.5× 98 0.5× 139 0.8× 35 787
Bingjun Qian China 23 155 0.5× 154 0.5× 562 2.8× 465 2.4× 351 2.0× 51 1.4k
Maria Vardakou United Kingdom 17 296 0.9× 331 1.0× 389 1.9× 204 1.1× 196 1.1× 19 1.0k
Tai-Boong Uhm South Korea 13 193 0.6× 255 0.8× 550 2.7× 82 0.4× 94 0.5× 35 841
Lele Shao China 20 234 0.7× 117 0.4× 278 1.4× 262 1.4× 80 0.5× 49 895
Ilce Gabriela Medina‐Meza United States 16 140 0.4× 415 1.3× 229 1.1× 581 3.0× 247 1.4× 39 1.2k
María Fernández‐Lobato Spain 23 746 2.2× 736 2.2× 739 3.6× 92 0.5× 273 1.6× 80 1.6k
Xin Yin China 17 235 0.7× 127 0.4× 449 2.2× 132 0.7× 389 2.2× 36 1.0k
Katerina Spyridopoulou Greece 13 96 0.3× 183 0.6× 404 2.0× 467 2.4× 234 1.4× 21 974

Countries citing papers authored by Hajime Aga

Since Specialization
Citations

This map shows the geographic impact of Hajime Aga's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hajime Aga with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hajime Aga more than expected).

Fields of papers citing papers by Hajime Aga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hajime Aga. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hajime Aga. The network helps show where Hajime Aga may publish in the future.

Co-authorship network of co-authors of Hajime Aga

This figure shows the co-authorship network connecting the top 25 collaborators of Hajime Aga. A scholar is included among the top collaborators of Hajime Aga based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hajime Aga. Hajime Aga is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Watanabe, Hikaru, et al.. (2023). Synthesis of isomaltooligosaccharides using 4-O-α-d-isomaltooligosaccharylmaltooligosaccharide 1,4-α-isomaltooligosaccharohydrolase. Bioscience Biotechnology and Biochemistry. 87(12). 1495–1504. 1 indexed citations
2.
Watanabe, Hikaru, et al.. (2022). Discovery of a novel glucanohydrolase, 4-α-isomaltooligosylglucose 4-glucanohydrolase, that can be used for efficient production of isomaltose. Carbohydrate Research. 517. 108578–108578. 2 indexed citations
3.
Yasuda, Akiko, Akiko Mizote, Manabu Miyata, et al.. (2022). Development of a method for preparing cyclic nigerosylnigerose syrup and investigation of its value as a dietary fiber. Bioscience Biotechnology and Biochemistry. 86(6). 780–791. 4 indexed citations
4.
Watanabe, Hikaru, Takuo Yamamoto, Hajime Aga, & Tomoyuki Nishimoto. (2020). Development of a Novel Soluble Dietary Fiber, Isomaltodextrin: Creating Unique Materials by Unique Enzymes. KAGAKU TO SEIBUTSU. 58(2). 82–88.
5.
Kawashima, Akira, Hiromi Ota, Hikaru Watanabe, et al.. (2020). A cyclic tetrasaccharide, cycloisomaltotetraose, was enzymatically produced from dextran and its crystal structure was determined. Carbohydrate Research. 496. 108104–108104. 9 indexed citations
6.
Yamamoto, Takuo, et al.. (2011). Enzymatic Properties of Recombinant Kojibiose Phosphorylase fromCaldicellulosiruptor saccharolyticusATCC43494. Bioscience Biotechnology and Biochemistry. 75(6). 1208–1210. 13 indexed citations
7.
Yamamoto, Takuo, Hikaru Watanabe, Tomoyuki Nishimoto, et al.. (2006). Acceptor recognition of kojibiose phosphorylase from Thermoanaerobacter brockii: Syntheses of glycosyl glycerol and myo-inositol. Journal of Bioscience and Bioengineering. 101(5). 427–433. 13 indexed citations
8.
Watanabe, Hikaru, Tetsuya Higashiyama, Hajime Aga, et al.. (2005). Enzymatic synthesis of a 2-O-α-d-glucopyranosyl cyclic tetrasaccharide by kojibiose phosphorylase. Carbohydrate Research. 340(3). 449–454. 12 indexed citations
9.
Aga, Hajime, Tetsuya Higashiyama, Hikaru Watanabe, et al.. (2004). Enzymatic synthesis of glycosyl cyclic tetrasaccharide with 6-α-glucosyltransferase and 3-α-isomaltosyltransferase. Journal of Bioscience and Bioengineering. 98(4). 287–292. 4 indexed citations
10.
Higashiyama, Tetsuya, Hikaru Watanabe, Hajime Aga, et al.. (2004). Enzymatic synthesis of a β-d-galactopyranosyl cyclic tetrasaccharide by β-galactosidases. Carbohydrate Research. 339(9). 1603–1608. 13 indexed citations
11.
Watanabe, Hikaru, Masayuki Nakano, Kazuyuki Oku, et al.. (2004). Cyclic Tetrasaccharide in Sake Lees. Journal of Applied Glycoscience. 51(4). 345–347. 14 indexed citations
12.
Watanabe, Hikaru, Hajime Aga, Michio Kubota, et al.. (2003). Synthesis of 3-O-β-N-Acetylglucosaminyl Cyclic Tetrasaccharide through a Lysozyme-catalyzed Transfer Reaction. Bioscience Biotechnology and Biochemistry. 67(5). 1182–1184. 3 indexed citations
13.
Shibuya, Takashi, Hajime Aga, Hikaru Watanabe, et al.. (2003). Transglycosylation of Glycosyl Residues to Cyclic Tetrasaccharide byBacillus stearothermophilusCyclomaltodextrin Glucanotransferase Using Cyclomaltodextrin as the Glycosyl Donor. Bioscience Biotechnology and Biochemistry. 67(5). 1094–1100. 10 indexed citations
14.
Aga, Hajime, Kazuhiko Maruta, Takuo Yamamoto, et al.. (2002). Cloning and Sequencing of the Genes Encoding Cyclic Tetrasaccharide-synthesizing Enzymes fromBacillus globisporusC11. Bioscience Biotechnology and Biochemistry. 66(5). 1057–1068. 35 indexed citations
15.
Aga, Hajime, Tetsuya Higashiyama, Hikaru Watanabe, et al.. (2002). Production of Cyclic Tetrasaccharide from Starch Using a Novel Enzyme System from Bacillus globisporus C11. Journal of Bioscience and Bioengineering. 94(4). 336–342. 18 indexed citations
16.
Kunikata, Toshio, Tomoki Tatefuji, Hajime Aga, et al.. (2000). Indirubin inhibits inflammatory reactions in delayed-type hypersensitivity. European Journal of Pharmacology. 410(1). 93–100. 115 indexed citations
17.
Aga, Hajime, et al.. (1999). Isolation and Identification of Anti-Helicobacter pylori Compounds from Polygonum tinctorium Lour.. Natural medicines = 生薬學雜誌. 53(1). 27–31. 25 indexed citations
18.
Kimoto, Tetsuo, Yukiko Yamamoto, Keiko Hino, et al.. (1999). Cytotoxic effects of substances in Indigo Plant (Polygonum tinctorium Lour.) on malignant tumor cells. 53(2). 72–79. 8 indexed citations
19.
Aga, Hajime, et al.. (1998). Anti-Helicobacter pylori Compounds in Brazilian Propolis. Natural medicines = 生薬學雜誌. 52(6). 518–520. 8 indexed citations
20.
Aga, Hajime, Takashi Shibuya, Hiroto Chaen, Shigeharu Fukuda, & Masashi Kurimoto. (1998). Stabilization by Trehalose of Superoxide Dismutase-like Activity of Various Vegetables.. Nippon Shokuhin Kagaku Kogaku Kaishi. 45(3). 210–215. 6 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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